/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package so.n_3.musicbox.servlet;

import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import so.n_3.musicbox.model.MusicBox;
import so.n_3.musicbox.model.Playlist;

/**
 *
 * @author oasynnoum
 */
public class RemoveMusic extends HttpServlet {

    /** 
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/xml;charset=UTF-8");
        boolean result = true;
        String playlistId = request.getParameter("playlistId");
        String[] removeMusicOrders = request.getParameterValues("orders[]");
        if (playlistId == null || removeMusicOrders == null) {
            result = false;
        } else {
            Playlist playlist = MusicBox.getInstance().getPlaylistById(playlistId);
            for (int i = 0; i < removeMusicOrders.length; i++) {
                result = result && playlist.removeMusic(Integer.parseInt(removeMusicOrders[i]), false);
            }
            result = result && playlist.sync();
        }
        PrintWriter out = response.getWriter();
        try {
            out.println("<?xml version='1.0' encoding='UTF-8'?>");
            out.println("<result value='" + Boolean.toString(result) + "' />");
        } finally {            
            out.close();
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /** 
     * Handles the HTTP <code>GET</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Handles the HTTP <code>POST</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Returns a short description of the servlet.
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
